Technical Abstract: Studies were conducted in Honduras to determine sampling range for female-targeted food-based synthetic attractants for pest tephritid fruit flies. Field studies were conducted in shaded coffee and adults of the Mediterranean fruit fly, Ceratitis capitata (Wiedemann), were captured. Traps (38 traps over 0.5 ha) were placed in a combination of standard and high density trapping grids to facilitate geostatistical analysis, and traps were sampled over 8 consecutive wk. Separate tests were conducted with Multilure traps baited with ammonium acetate and putrescine lures alone (two component attractant) or in combination with trimethylamine lures (three component attractant). Sampling ranges, as determined from spatial range obtained from experimental variograms that fit a spherical model, were approximately 60 m and 30 m for the two component and three component attractants, respectively, for female C. capitata and 25 m for both attractants for male C. capitata. Release/recapture studies using field-captured mixed sex C. capitata released within 24 h of capture, found a sampling range of 30-40 m for traps baited with the three component attractant, results similar to those obtained from experimental variograms. Geostatistical analysis of field-captured insects in appropriately designed trapping grids may provide a supplement or alternative to release/recapture studies to estimate sampling range for semiochemical-based trapping systems.